Shutter for moving-picture machines.



F. W. HOCHSTETTER. SHUTTER FOR MOVING PICTURE MACHINES.

APPLICATION FILED NOV. 11, 1913.

1,094,148, Patented Apr. 21, 191

UNITED STATES PATENT OFFICE.

FREDERICK VJ. HOCHSTETTER, OF NEW YORK, N. Y., ASSIGNOR TO H. P. PATENTS AND PROCESSES COMPANY, INC., A CORPORATION OF NEW YORK.

SHUTTER FOR MOVING-PICTURE LIAOHINES.

Specification of Letters Patent. Patnted Apr. 21 1914.

Application filed November 11, 1913. Serial No. 80Q,317.

To all whom it may concern Be it known that I, Flmoenrok H0011- srn'rrnn, a subject of the Emperor of Germany, and a resident of New York, county and State of New York, have invented a certain new and useful Improvement in Shutters for Moving-Picture Machines, of which the following is a full, clear, and exact specification.

This invention relates to a class of devices adapted to be used in conjunction with 1noving picture machines.

My invention has for its object primarily to provide a shutter designed to be espe cially utilized in conjunction witha camera for photographing living objects, or scenery for. the production of moving pictures in their natural colors as well as being adaptedfor use in conjunction with a. projecting ma.- chine for exhibiting the pictures in corre -sponding colors, and wherein is employed a number of transparent color plates which are mounted in forms of brackets pivotally held so as to be intermittently swungin succession, or separately before the exposure window of the machine for passage of light t-herethrough. v

Other objects of the invention are to pro vide a disk having a plurality of spaced openings therethrongh, and which is revolved simultaneously with the operation of the brackets carrying the transparent platesgt-o provide a form of rotatable trip means for revolving the disk from a common drive shaft.

-\Vith these and other objects in view, the invention will be hereinafter more particularly described with reference to the accompanying drawing which forms a part of this specification, and will then be pointed out in the claims at the end of the description.

In the drawing, Figure l is a fragmentary sectional view showing a part of a moving picture machine with one form of shutter embodying my invention applied thereto. Fig. 2 is an enlarged front elevation ofthe device. Fig. 3 is an enlarged side elevation of one of the swinging brackets carrying a transparent .plate employed in the shutter.

Fig. 1 is a section taken on the line II'II of Fig. 3. Fig. 5 is an enlarged side elevation,.partly broken away, of the trip used in the device, and Fig. 6 isa section, partly in detail, taken on the line III'1II of F 5.

The device, or shutter is adapted to be used in conjunction with a machine for pro.-

jecting moving pictures in -colors upon a screen, Or may be employed upon-a camera for photographing living objects, or scenery in their natural colors. The'machine may be of the usual, or any preferred form having a casing 10 in the front wall 11 of which is an exposure window 12. To the casing 10 at its exposure window is secured a telescopic lens barrel 13, and interiorly of the casing is a framing; device 14 provided with the usual windows, not shown, which are in register with the exposure window 12. .The framing device serves to intermittently guide the customary manner a transparnt film, as .15, before said windows,

- The mechanism of the machine and the parts of' my shutter are arranged so as to be preferably operated by a common drive shaft-16 which is manually rotated by a crank handle 17;

The shutter has a. pluralityof plates of glass, Or other transparent materiahias 18, which may be of one, or a number of the primary colors as occasion may require for the production and exhibition of'the pictures in their natural colors. Each of the transparent plates 18 is mounted 'in a frame 19 provided upon one end of a bracket or arm 20, and while four of these brackets and platesare shown in the drawing it will be understood that a greater or less number is 9. lug 23 having a straight edge to provide a shoulder 24. The brackets 20 are normally disposed so that the transparent plates 21 are positioned at the top of the casing lO'to be free from registration with the exposure window 12, and serving to yieldingly retain the brackets in these posithe trip 1 contacting the bolts tions, connected to each of the brackets intermediate its ends is one end of a spiral spring 25 having its other end connected to one of the side walls of the casing 10.

Serving to intermittently swing one or more of the brackets singly or collectively, or serving to swing a desired number of the brackets consecutively for moving the transparent plates thereof into register with the exposure window 12,1 provide a form of trip, as 26. The trip 26' has a drum or hub 27 held upon a shaftr279which is journaled in the casing 10 of the machine. Extending centrally through the hub 27 from diametrically opposite parts of its periphery are four threaded spaced passages-28 which are arranged in a row longitudinally of the.

hub, and also extending centrally through the hub from diametrically opposite parts of its periphery transversely with respect to the assages threaded spaced passages 29.: In both ends 'of each of the passages 28 are screwed threaded pins or bolts 30'and 31,

ing a slotted'endwhereby it'may .be'smt:

' 1 ably-adjusted with relation, to the periphery of the hub. ,Also in both ends ofea/ch-of the passages 29 are screwed threaded pins, or bolts 32 and 33, each sothat it may be suitably adjusted relatively to the periphery of the hubs. The 'rows of bolts 30,- 31, 32, 33 are thus ada ted torbe adjusted 'to extend in spoke fa's 'on' from the hub27, and whileI employ in-the device illustrated four rows of. the bolts, it will be understood that additional rows of the bolts may be used in forms .of the sh'utter as occasion requires. The triple arranged so that one of the bolts of each row will be' normally in the of one'of the lugs 23. of the circular plates of the brackets 20 so that the bolts-will contact in succession with the shoulders of the lugs when the trip is revolved.

For the purpose of imparting rotation to 26 when the drive shaft is driven, on the shaft 27" of the trip is held a bevel gear 34 which is in mesh with a bevel gear 35 held upon the upper end of a shaft 36 provided 1n the casing of the machine. On the lower end of the shaft 36 is a second bevel gear 37 which is in mesh with a bevel gear 38 held upon the drive shaft 16.. Thus when the drive shaft is rotated the trip 26 will be accordingly revolved for intermittently 30,31, 32, 33 with the shoulder of the lugs 23 of the circular plates of the brackets. The brackets 20 will then be swung upon their pivots against the ten sion of the springs 25 so as to throw the transparent plates 18 intermittently in register with the exposure window 12. All of the brackets will thereby be intermittentlv window.

through .or stud 39 28 1s another. row of four each haw having a slotted'endstud 44 is a path of movement 33 in the passages of the hub of the trip one or more of the brackets may be inter- -mittently swung singly orcollectively, or a desired number of the brackets may be swung consecutively for moving1 the transparent plates in register with t e exposure In this manner transparent plates of a single color, or a ors, or various combinations of colors may be advantageously employed in conjunction with the shutter.

In order to .cutofi' thelight projected the exposure window 12 and through the-windows of the framing device when the transparent plates are not in register with the windows, upon a short shaft, journaled in the front wall of the casing 10 is held a revolublefdisk 40 having a number of apertures 41 therethrough. The apertures 41 arerelativel spaced apart so that each aperture will register with each '-of the transparent plates 18 when registered \vith the exposurewindow 12 of the casing, and servingasfmeans to lrevolve said disk. at a speed to accomplishlthis', upon the stud 39. is held a pinion 42which' is in mesh with a gear'43 held upon a stud 14 journaled in series of different colthe front wall of the casing. Also upon the inion 45 in mesh with an idler 46 which ly rotatable u on a stud 46 rojecting from the front wal of the casing, and-this idler-sis in mesh with a upon a shdrt'shaftES-also journaled an the, frontwallzof the casing. ,VOn theIree end of the shaft 48;is a-bevel gear 49 which drivesbaft IGI By properly gearing the disk 40in thismanner it will be revolved in unison with the operation of the trip26 and the brackets 20 for accurately registering the transparent plates'18fland the apertures 41 r of the disk intermittently with theexposure windows of the machine during the photographing of living objects, or scenery upon a film, or during the projecting of the pictures upon a screen.

In the foregoing description I have embodied the preferred form of my invention, but I do not wish to be understood as limiting myself thereto as I am aware that modifications may be made therein without departing from the principle or sacrificing any of the advantages of this invention, therefore I reserve to myself the right to make such changes as fairly fall'within the scope of the appended claims.

Having thus described my invention, 1 claim as new andv desire to secure byLetters Patent 1. In a shutter of the character described, the combination with a casing having an exposure window, of a plurality of brackets, each carrying a transparent plate, said gear 47 held 10,0 )bevelgear' 50 held upon the brackets being pivoted in the casing so as 1 tern'iittcntly' registering the transparent plates with the exposure window, a drive shaftfand means operat-ively connected to the drive shaft and engaging the brackets for intermittently swinging the brackets in succession to register the transparent plates correspondingly with the exposure window when the drive shaft is 'rotated.

2. In a shutter of the character described, the combination with a casing having an exposure window, of a bracket carrying a tainsparent, plate, said bracket being pivoted in the casing so as to be swung for inthe transparent plate with the exposure window, a drive shaft, and means operatively connected to the drive shaft and engaging thebracket, said means being adapted to be adjusted for intermittently swinging the bracket to register the transparent plate with the exposure window when the drive shaftis rotated.

23. In a shutter of the character described, the combination with a casing having an exposure window, of a plurality of brackets, each carrying a transparent plate, said brackets being pivoted in the casing so as to be swung for intermittently registering the transparent plates with the exposure window, a drive shaft, a trip provided in the casing and movably engagingthe brackets, and means operatively connected to thedrive shaft and to'the trip for operating the trip to intermittently swing anumber of the brackets in unison so as to register the transparent plates correspondingly with the eX-.

posnre window when the drive shaft is r0- tated.

In a shutter of the character described, the combination with a casing having an exposurewindow, of a plurality of brackets, each carrying a transparent plate, said brackets being pivoted in the casing so as to be swung for intermittently registering the transparent plates with the exposure window, a driveshaft, an adjustable trip provided in the casing and movably engaging the brackets, and means operatively connected to the drive shaft and to the trip for operating the trip to intermittently swing the'brackets in succession so as to register the transparent plates correspondingly with the exposure window when the drive shaft is rotated.

5. In a shutter of the character described, the combination with a casing having an exposure window, of a plurality of brackets, each carrying a transparent plate, said brackets being pivoted in the casing and yicldingly retained so as to be swung for intermittently registering the transparent plates with the exposure window, a drive shaft, and means operatively "connected to thevrdrive shaft and engaging the brackets, 'said means being adapted to be adjusted for intermittently swinging oneof the brackets or intermittently swinging a number of the brackets in succession to register the transparent'plates correspondingly with the exposure window when, the drive shaftis TU tated.

6. In a shutter of the character described,

the combination with acasing having an exposure window, of afbra'cket, carrying a transparent plate, said bracket being p voted in-the casing so as toii be swung for intermittently registering the transparent plate with the exposure window, a drive shaft, means operatively connected to the drive shaft and engaging the bracket for intermittently swinging the bracket to register the transparent plate with the exposure window when the drive shaft is rotated, a disk having an aperture therethrough', said disk being revolubly held in thecasing so that its aperture will register with the transparent plate when swung in register with the exposure window, and means connected to the drive shaft and to the disk for revolving the disk when the drive shaft is driven.

7. In a shutter of the character described, the combination with acasing having an exposure wiifdow,-of a plurality of brackets,

each" carrying a transparent plate, said brackets being pivoted in the casing so as to be swung for intermittently registering the transparent plates with the exposure window, a drive shaft, means operatively connected to the drive shaft and engaging the brackets,'said means being adapted to be adjusted for intermittently swinging the brackets in succession to register the-trans parent plates correspondingly withlthe'exposure window when thedrive shaft is rotated, a disk having a number of spaced apertures therethrough, said disk being revolubly held in the casing so that each of its openings will register with one of the transparent platesjwhen swung in register with the exposure window, and means connected to the drive shaft and to the disk for revolving the disk when the drive s'haftis driven.

8. ,In a shutter of the character described, the combination with a casing having an exposure window, of a plurality of brackets, each carrying a transparent plate, said brackets being pivoted in the casing so as to be swung for intermittently registering the transparent plateswith the exposure window, a drive shaft, a trip provided in the casing and movably engaging the brackets, means operatively connected to'the drive shaft-and to the trip for operating the trip to intermittently swing the brackets in succession to register the transparent plates correspondingly with the exposure window when the drive shaft is rotated, a disk having a number of spaced apertures therethrough, said disk being revolu'bly' held in the casing so that eachof its openings will register with one of the transparent plates when swung in register with the exposure window, and means connected to the drive shaft and to the disk for revolving thedisk.

. when the drive shaft isdriven.

eachggarqixig a transparent plate,--- said" '9. In -a shutter ofthe character described,

. the combination with a casing having an exposu'rg; window, of a pluralityi'of brackets,

brackets being pivoted in the casing so as to be swung for intermittently. registering the window when thedi'ive shaft is rotated, a disk having a number of spaced apertures therethrougli," said disk j being revoh'lbly held in the casing so thateach of its openings. will register with one of the transparent plate'sfihen'swpng in' 'register. with the exposure w ndow, and gearing for revolving the disk when the drivesh aft is drivern f;

, 10. In a shutter of the characterdescribed, the combination with a casing having an ex of a plurality'of brackets, nsparent plate, said d in the casing and e swung for intering the transparent sure window, aidrive el'y connected to the aging the brackets,

to be adjusted for interly swinging one of the brackets or intly swinging a number of the brackets'in succession to register the transparent ndingly with the earposure' hef'drive' shaft is "rotated,'-'a

posure window, each carrying a tra brackets being pivote yieldingly retained termittently plates with the expo shaft, means operativ drive shaft, and en means being adapte .plates correspo window when t disk having 'anumber ofjSp11c'ed "a therethrough, said disk being revol in the casing so that each ofits openings will t a sp re t P e sterjvwithfflthe i for; revolvingi'the disk' I register with one of w s ng in, r window, and gearingv when the drive shaftis d This specification sig'ne this tenth day of November." 

